<template>
  <div class="login-container" :class="[bgClass]" :style="backgroundImg">
    <div class="login-container-main">
      <!-- <div class="main-title">系 统</div> -->
      <div class="main-content">
        <!-- <div class="main-content-left">
              <img :src="login_left_img" alt="" />
            </div> -->
        <div class="main-content-right">
          <el-form
            ref="loginForm"
            :model="loginForm"
            :rules="loginRules"
            class="login-form"
            auto-complete="on"
            label-position="left"
          >
            <div class="title-container">
              <h3 class="title">物探中心业绩成果库</h3>
            </div>
            <el-form-item prop="username">
              <span class="svg-container">
                <svg-icon icon-class="user" />
              </span>
              <el-input
                v-model="loginForm.username"
                name="username"
                type="text"
                tabindex="1"
                auto-complete="on"
                placeholder="管理员账户"
              />
            </el-form-item>
            <el-form-item prop="password">
              <span class="svg-container">
                <svg-icon icon-class="password" />
              </span>
              <el-input
                v-model="loginForm.password"
                :type="passwordType"
                name="password"
                auto-complete="off"
                tabindex="2"
                show-password
                placeholder="管理员密码"
                @keyup.enter.native="handleLogin"
              />
            </el-form-item>
            <el-form-item prop="code">
              <span class="svg-container">
                <svg-icon icon-class="lock" />
              </span>
              <el-input
                v-model="loginForm.code"
                auto-complete="off"
                name="code"
                tabindex="2"
                placeholder="验证码"
                style="width: 60%"
                @keyup.enter.native="handleLogin"
              />
              <div class="login-code">
                <img :src="codeImg" @click="getCode">
              </div>
            </el-form-item>
            <el-button
              :loading="loading"
              type="primary"
              style="width: 100%; height: 50px; margin-bottom: 30px"
              @click.native.prevent="handleLogin"
            >登录</el-button>
            <!-- <div style="position: relative">
                  <div class="tips">
                    <span> 超级管理员用户名: admin123</span>
                    <span> 超级管理员用户名：admin123</span>
                  </div>
                  <div class="tips">
                    <span> 商城管理员用户名: mall123</span>
                    <span> 商城管理员用户名：mall123</span>
                  </div>
                  <div class="tips">
                    <span> 推广管理员用户名: promotion123</span>
                    <span> 推广管理员用户名：promotion123</span>
                  </div>
                </div> -->
          </el-form>
        </div>
      </div>
    </div>
    <div class="copyright">
      Copyright © {{ nowYear }} xxx 版权所有
      <!-- <a href="http://www.example.com/">沪ICP备xxx号</a> -->
    </div>
  </div>
</template>
<script>
import { getKaptcha } from '@/api/login'
import login_left_img from '@/assets/images/login_left.png'
export default {
  name: 'Login',
  data() {
    const validatePassword = (rule, value, callback) => {
      if (value.length < 6) {
        callback(new Error('管理员密码长度应大于6'))
      } else {
        callback()
      }
    }
    return {
      login_left_img,
      bgClass: 'active',
      backgroundImg: '../../assets/images/login_bg.jpg',
      loginForm: {
        username: '',
        password: '',
        code: ''
      },
      codeImg: '',
      loginRules: {
        username: [
          {
            required: true,
            message: '管理员账户不允许为空',
            trigger: 'blur'
          }
        ],
        password: [
          {
            required: true,
            message: '管理员密码不允许为空',
            trigger: 'blur'
          },
          {
            validator: validatePassword,
            trigger: 'blur'
          }
        ]
      },
      passwordType: 'password',
      loading: false
    }
  },
  computed: {
    nowYear() {
      const date = new Date()
      return date.getFullYear()
    }
  },
  watch: {
    $route: {
      handler: function(route) {
        this.redirect = route.query && route.query.redirect
        this.loginForm.code = ''
      },
      immediate: true
    }
  },
  created() {
    this.getCode()
    // 随机1-12之间数字
    var x = 13 // 上限
    var y = 0 // 下限
    var rand = parseInt(Math.random() * (x - y + 1) + y)
    const bgImg =
      'background-image:url(' +
      require('../../assets/images/' + rand + '.jpg') +
      ')'
    this.backgroundImg = bgImg
  },
  destroyed() {
    // window.removeEventListener('hashchange', this.afterQRScan)
  },
  methods: {
    getCode() {
      getKaptcha().then((response) => {
        this.codeImg = response.data.data
        this.loginForm.code = ''
      })
    },
    handleLogin() {
      this.$refs.loginForm.validate((valid) => {
        if (valid && !this.loading) {
          this.loading = true
          this.$store
            .dispatch('LoginByUsername', this.loginForm)
            .then(() => {
              this.loading = false
              this.$router.push({
                path: this.redirect || '/'
              })
            })
            .catch((response) => {
              if (response.data.data) {
                this.codeImg = response.data.data
              }
              this.loginForm.code = ''
              this.$notify.error({
                title: '失败',
                message: response.data.errmsg
              })
              this.loading = false
            })
        } else {
          return false
        }
      })
    }
  }
}
</script>
<style lang="scss">
/* 修复input 背景不协调 和光标变色 */

/* Detail see https://github.com/PanJiaChen/vue-element-admin/pull/927 */

$bg: #283443; // $cursor: #fff;
// $light_gray: #fff;
$light_gray: #303133;
$cursor: #f00;
@supports (-webkit-mask: none) and (not (cater-color: $cursor)) {
  .login-container .el-input input {
    color: $cursor;
  }
}
/* reset element-ui css */
.login-container {
  .el-input {
    display: inline-block;
    height: 47px;
    width: 85%;
    input {
      background: transparent;
      border: 0px;
      -webkit-appearance: none;
      border-radius: 0px;
      padding: 12px 5px 12px 15px;
      color: $light_gray;
      height: 47px;
      caret-color: $cursor;
      &:-webkit-autofill {
        box-shadow: 0 0 0px 1000px $bg inset !important;
        -webkit-text-fill-color: $cursor !important;
      }
    }
    ::placeholder {
      //通过这个设置提示字符背景颜色
      color: #838688;
    }
  }
  .el-form-item {
    border: 1px solid rgba(255, 255, 255, 0.4);
    background: rgba(90, 90, 90, 0.1);
    border-radius: 5px;
    color: #363636;
  }
}
</style>

<style lang="scss" scoped>
$bg: #2d3a4b;
$dark_gray: #889aa4; // $light_gray: #eee;
$light_gray: #303133;
.login-container {
  min-height: 100%;
  width: 100%; // background-color: $bg;
  background-repeat: no-repeat;
  background-size: 100% 100%;
  overflow: hidden;
  display: flex;
  justify-content: center;
  align-items: center;
  &.bg-active1 {
    background-image: url('../../assets/images/login_bg.jpg');
  }
  &.bg-active2 {
    background-image: url('../../assets/images/login_bg2.jpg');
  }
  &.bg-active3 {
    background-image: url('../../assets/images/login_bg3.jpg');
  }
  &-main {
    height: 450px;
    width: 500px;
    position: relative;
    .main-title {
      position: absolute;
      z-index: 2;
      top: -25px;
      left: 250px;
      height: 50px;
      width: 50%;
      background-image: url('../../assets/images/login_title.png');
      background-size: 100% auto;
      background-repeat: no-repeat;
      text-align: center;
      color: #fff;
      line-height: 50px;
      font-size: 26px;
      font-weight: bold;
    }
    .main-content {
      display: flex;
      justify-content: space-between;
      &-left {
        width: 500px;
        height: 500px;
        flex-shrink: 0;
        & img {
          width: 100%;
        }
      }
    }
  }
  .login-form {
    position: relative;
    width: 500px;
    height: 450px;
    max-width: 100%; // background-color: $bg;
    background-color: rgba(240, 240, 240, 0.9);
    padding: 55px 35px 0;
    margin: 0 auto;
    overflow: hidden;
    border-radius: 20px; // border-top-right-radius: 20px;
    // border-bottom-right-radius: 20px;
  }
  .login-code {
    padding-top: 5px;
    float: right;
    img {
      cursor: pointer;
      vertical-align: middle;
    }
  }
  .tips {
    font-size: 14px;
    color: #fff;
    margin-bottom: 10px;
    span {
      &:first-of-type {
        margin-right: 16px;
      }
    }
  }
  .svg-container {
    padding: 6px 5px 6px 15px;
    color: $dark_gray;
    vertical-align: middle;
    width: 30px;
    display: inline-block;
  }
  .title-container {
    position: relative;
    .title {
      font-size: 26px;
      color: $light_gray;
      margin: 0px auto 40px auto;
      text-align: center;
      font-weight: bold;
    }
  }
  .copyright {
    font-size: 12px;
    color: #fff;
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translate(-50%, -50%);
    margin-bottom: 20px;
    letter-spacing: 0.6px;
    a {
      font-weight: bold;
      border-bottom: 1px solid #fff;
      font-family: 'PingFangSC-Semibold', sans-serif;
    }
  }
}
</style>
